Title:
IN-WHEEL MOTOR DRIVING DEVICE
Document Type and Number:
Japanese Patent JP2015027820
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To prevent failures caused by deterioration and impurity contamination of a lubrication oil, which lubricates and cools an electric motor and a speed reducer of an in-wheel motor driving device.SOLUTION: An in-wheel motor driving device includes: an electric motor A which generates a driving force; a speed reducer B which reduces a speed of rotations of the electric motor A and outputs the rotations; and a wheel hub C which transmits the output from the speed reducer B to a wheel. The electric motor A and the speed reducer B are housed in a housing 22. The in-wheel motor driving device is provided with a lubrication oil passage 22e for lubricating and cooling the electric motor A and the speed reducer B. In the in-wheel motor driving device, a lubrication oil monitoring device 65 which detects deterioration and impurity contamination of a lubrication oil is installed in the lubrication oil passage 22e.
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Inventors:
WATANABE YASUTO
Application Number:
JP2013157351A
Publication Date:
February 12, 2015
Filing Date:
July 30, 2013
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD
International Classes:
B60K7/00; F16H1/32; F16H57/04; G01N27/04; H02K9/19; H02K9/24; H02K9/26
Attorney, Agent or Firm:
Kazuhisa Torii
Torii 洋
Torii 洋
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